SL-Class (R231) 2013 on: Discussion on the SL550

SL/R231: Answered some of my own questions re tire and wheel size

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Old 02-08-2023, 07:04 AM
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sl 550
Answered some of my own questions re tire and wheel size

I bought a set of used wheels. Forgeline AL301s. 20 x 9.5 (ET 25) up front; 20 x 10 (ET 35) in the rear. The fronts are too wide for 245/35/20, so I tried 255/35/20. The 255/35/20 were too tall. Now, I'm thinking of trying 265/30/20 upfront. Otherwise, I'm going to ask the manufacturer to install a narrower barrel on the two front wheels. Anyone have experience with 265s up front? Also, I have not found the 20s to be harsh at all. In fact, they feel better to me.



Old 02-10-2023, 07:24 AM
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2006 CLS55 AMG Sold 2010 E550 Coupe totaled '13 SL550 current and loving it!
What about a 255/30? 255/35 and 265/30 will be roughly the same height and I am not sure if there is enough room for a 265 width up front. Are you rubbing with the 255/35?
Old 02-10-2023, 12:28 PM
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AMG GTC Roadster, E63s Ed.1, M8 Comp. Coupe
The stock AMG combination has 255/35/19 and 285/30/20. Front wheel diameter is 26" and the rear 26.7"

Right now you have 27.3" diameter in front which why this combo looks funky aka too large. You can go 265/30/20 and should have no issues with rubbing even if you decide to lower the car. I hope you are using 30' in the rear?

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